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NOTES PAYABLE AND COMMERCIAL BANK FINANCING - Schedule of Notes Payable, Capital Leases and Commercial Bank Financing (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Apr. 01, 2021	Dec. 04, 2020
Debt Instrument [Line Items]
Outstanding debt amount	$ 4,289,000,000
Finance lease, liability	32,000,000	$ 37,000,000
Total outstanding principal	4,321,000,000	12,498,000,000
Less: Deferred financing costs and discount	(56,000,000)	(158,000,000)
Less: Current portion	(35,000,000)	(66,000,000)
Less: Finance leases - affiliate, current portion	(6,000,000)	(5,000,000)
Long-term debt	4,227,000,000	12,271,000,000
Debt of variable interest entities
Debt Instrument [Line Items]
Outstanding debt amount	8,000,000	9,000,000
Debt of other non-media related subsidiaries
Debt Instrument [Line Items]
Outstanding debt amount	16,000,000	17,000,000
Finance leases
Debt Instrument [Line Items]
Finance lease, liability	23,000,000	28,000,000
Finance leases - affiliate
Debt Instrument [Line Items]
Finance lease, liability	9,000,000	9,000,000
Less: Finance leases - affiliate, current portion	(3,000,000)	(3,000,000)
Notes \| 5.875% Unsecured Notes, due March 15, 2026
Debt Instrument [Line Items]
Outstanding debt amount	$ 0	348,000,000
Interest rate (as a percent)	5.875%
Notes \| 5.125% Unsecured Notes, due February 15, 2027
Debt Instrument [Line Items]
Outstanding debt amount	$ 282,000,000	400,000,000
Interest rate (as a percent)	5.125%
Consideration for debt	$ 118,000,000
Repayments of senior debt	104,000,000
Notes \| 5.500% Senior Notes due 2030
Debt Instrument [Line Items]
Outstanding debt amount	$ 500,000,000	500,000,000
Interest rate (as a percent)	5.50%
Notes \| 4.125% Senior Secured Notes due 2030
Debt Instrument [Line Items]
Outstanding debt amount	$ 750,000,000	750,000,000
Interest rate (as a percent)	4.125%			4.125%
Notes \| 12.750% Senior Secured Notes due 2026
Debt Instrument [Line Items]
Outstanding debt amount	$ 0	31,000,000
Interest rate (as a percent)	12.75%
Notes \| 5.375% Senior Secured Notes due 2026
Debt Instrument [Line Items]
Outstanding debt amount	$ 0	3,050,000,000
Interest rate (as a percent)	5.375%
Notes \| 6.625% Senior Notes due 2027
Debt Instrument [Line Items]
Outstanding debt amount	$ 0	1,744,000,000
Interest rate (as a percent)	6.625%
STG Term Loan Facility \| STG Term Loan B-3
Debt Instrument [Line Items]
Aggregate principal amount			$ 740,000,000
STG Term Loan Facility \| Term Loan \| Term Loan B-1
Debt Instrument [Line Items]
Outstanding debt amount	$ 0	379,000,000
STG Term Loan Facility \| Term Loan \| Term Loan B-2
Debt Instrument [Line Items]
Outstanding debt amount	1,258,000,000	1,271,000,000
STG Term Loan Facility \| Term Loan \| Term Loan B-3
Debt Instrument [Line Items]
Outstanding debt amount	729,000,000	736,000,000
STG Term Loan Facility \| Term Loan \| Term Loan B-4
Debt Instrument [Line Items]
Outstanding debt amount	746,000,000	0
DSG Term Loan \| Term Loan
Debt Instrument [Line Items]
Outstanding debt amount	$ 0	$ 3,226,000,000